Aneurysm embolization micro-catheter

Abstract

The invention provides an aneurysm embolization micro-catheter. The micro-catheter is provided with a catheter body, a head end I and a head end II, wherein one side of the head end I is connected with a handle; the head end II is provided with an end hole; the bending degree of the catheter body close to one side of the head end II is adjustable, and a side hole is formed in the upper surface of the catheter body; a check valve is arranged between the side hole and the head end II; the check valve allows a guide wire to be inserted into the micro-catheter from the end hole of the head end I, and a spring ring is put in from the handle and only can be taken out from the side hole. The aneurysm embolization micro-catheter has the following advantages that the spring ring is taken out from the side hole, so that a risk that the spring ring pierces an aneurysm can be reduced, counterforce of the catheter is reduced, and the stability of the catheter is increased; the head end II has a section of length with adjustable bending degree, and the direction of the side hole can be controlled through various shapes of the head end II, so that the filling uniformity and density of the aneurysm are increased; with regard to the aneurysm with a tumor cavity having no depth, the shapes of the head ends of the micro-catheter can be adjusted, so that an opening of the side hole is aligned to an aneurysm neck, and the aim of safely filling the aneurysm is achieved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an aneurysm embolization microcatheter. Background technique [0002] With the development of interventional surgery technology and the improvement of interventional surgical equipment, cerebral aneurysm embolization has gradually become an important method of aneurysm treatment. When aneurysm interventional embolization is performed, a microcatheter is used to superselect into the aneurysm cavity, and a spring is delivered through the microcatheter. Aneurysm aneurysm aneurysm cavity packing, in order to prevent the aneurysm from rupture and bleeding again. [0003] like figure 1 As shown, the existing microcatheters for aneurysm embolization are end-hole catheters, such as figure 2 As shown, when filling the coil, the coil is sent out from the tip of the catheter. When filling the aneurysm, there may be a risk of the top wall of the tip of the microcatheter and the co...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the existing aneurysm embolization microcatheter is prone to the top wall of the microcatheter head, which causes the coil to puncture the aneurysm, the stability of the microcatheter is poor, and it is difficult to embolize the aneurysm with a special shape. In order to solve the above problems, provide An aneurysm embolization microcatheter

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